Batch / Ratio Controllers

CONTREC is global leaders of high precision quality flow instrumentation, combining nearly 40 years of engineering excellence with cutting edge technology.

Manufactured in the UK and accredited to ISO 9001:2015, they deliver reliable and accurate flow-based solutions into industries such as Oil and Gas, Chemical and Petrochemical, Food and Beverage, Energy, Water and Waste water.

Designed for precision and reliability, Contrec's flow computers are suited for diverse applications, including custody transfer, process control, and water management. They also provide instruments capable of data logging for tracking flow parameters over time, which is essential for analysis and reporting.

Overall, Contrec stands out in the flow computer sector by offering robust, innovative solutions catering to the changing needs of its diverse clientele while maintaining a commitment to accuracy, reliability, and customer satisfaction.

Products include:

• Flow Rate/Totalisers

• Heat Calculator

• Gas/Steam Flow Computers

• Loading Computers

• Flow/ Level/ Process Indicators

• Truck Registers

• Enclosures and Accessories

CONTREC 515 – BR01 – Frequency Input Batch/Ratio Controller, Tailored for Vol. Flow Meters

CONTREC 515 – BR02 – Analogue Input Batch/Ratio Controller for Vol. Flow Meters

CONTREC 515 – BR03 – Frequency Input Batch/Ratio Controller, Tailored for Mass Flow Meters,

CONTREC 515 – BR04 – Analogue Input Batch/Ratio Controller, Tailored for Mass Flow Meters

CONTREC 515 – CR02 – Analogue Input Batch Ratio Controller

CONTREC 515 – BR01 – Frequency Input Batch/Ratio Controller, Tailored for Vol. Flow Meters

The 515 BR01 application is a batching ratio controller designed for delivering predetermined quantities at preset ratios using volumetric frequency inputs. It offers batch control in preset or on-off modes, and flow control can be configured to various loop control modes. This application provides operators with a clear local readout, including flowrate deviation, and can be controlled via communications in more automated systems. Additionally, quick access to commonly used preset values is available from the front panel if authorized. The PI control of the process flow is achieved through a 4-20mA proportional valve or pump controller, incorporating integral windup protection, deadband, output hold, and programmable ramp time to reduce wear on valves and actuators while enabling bumpless operation.

Data Sheet CONTREC 515 BR01

Manual CONTREC 515 BR01

The 515 BR01 Batch Process Controller from Contrec is a powerful tool designed for accurate delivery of preset quantities at specific ratios using volumetric frequency inputs. It caters to various oil and gas applications requiring precise control over blending processes.

Versatile Control Modes:
- Ratio Control: Delivers process flow as a ratio of the main flow (ranging from 0 to 400%).
- Blend Control Modes (BLEND-1 and BLEND-2): Enables blending at points before or after the main flowmeter, with process flow calculated as a ratio of the net flow (ranging from 0 to 80%).
Clear Operator Interface: Provides a user-friendly front panel displaying current values, flow rate deviation, and calculation results.
Enhanced Control in Automated Systems: Integrates seamlessly with communication systems for control in automated setups.
Fast Preset Access: Authorized operators can quickly access commonly used presets directly from the controller.
Precise Flow Control: Utilizes a 4-20mA proportional valve or pump controller with PI control for accurate flow regulation.
Advanced Features:
- Integral wind-up protection safeguards valves from damage.
- Deadband minimizes unnecessary control adjustments.
- Output hold maintains a stable signal during power interruptions.
- Ramp time allows for smooth valve opening and closing, reducing wear.
Detailed Data Storage (Optional): Stores up to 1000 transactions with timestamps using a real-time clock (optional).
Flexible Communication: Enables remote data access, printing, and initial program loading via RS232, optional RS485, or optional Ethernet ports.
Configurable Outputs:
- Isolated Outputs: Offer configurable settings to retransmit variables or provide error/control signals.
- Relay Outputs: Control product flow for each delivery (normally open contacts). Additional relays available for programmable alarms (optional).
User-friendly Configuration: Allows customization through the front panel or 500 Series Program Manager software for tailored operation.
Reliable Data Storage: Stores all settings, totals, and logged data in non-volatile memory for at least 30 years.

In essence, the 515 BR01 Batch Process Controller is a comprehensive solution for oil and gas applications requiring precise ratio and blend control, offering user-friendly operation, advanced features, and reliable data storage.

Benefits

Tailored for volumetric frequency flow input
Single or Dual stage control
Preset or manual On-Off modes
Easy access to batch and flow rate presets
No-flow, leakage and overflow error detectio
Remote RUN/STOP/RESET
Allows for permissive with prompt
Uses PI Loop Control
Allows for non-linear correction
Storage of 1000 transactions with time and date stamp
Selection of second language and user tags
Selectable protocols on serial ports including Modbus RTU and Printer output
Backlit display with LCD backup

More details

CONTREC 515 – BR02 – Analogue Input Batch/Ratio Controller for Vol. Flow Meters

The 515 BR02 application is a batching ratio controller designed for delivering predetermined quantities at preset ratios using volumetric analog inputs. It offers batch control in preset or on-off modes, and flow control can be configured to various loop control modes. This application provides operators with a clear local readout, including flowrate deviation, and can be controlled via communications in more automated systems. Additionally, quick access to commonly used preset values is available from the front panel if authorized. The PI control of the process flow is achieved through a 4-20mA proportional valve or pump controller, incorporating integral windup protection, deadband, output hold, and programmable ramp time to reduce wear on valves and actuators while enabling bumpless operation.

Data Sheet CONTREC 515 BR02

Manual CONTREC 515 BR02

The 515 BR02 Batch Ratio Controller, is very similar to the 515 BR01.

Similarities:

Function: Both are batch ratio controllers for delivering preset quantities at specific ratios.
Control Modes: Both offer Ratio and Blend control modes (BLEND-1 and BLEND-2) with identical calculation formulas.
Operator Interface: Both provide clear local readouts and allow control via communication in automated systems.
Flow Control: Both utilize PI loop control with a 4-20mA proportional valve/pump controller and share features like wind-up protection, deadband, output hold, and ramp time.
Data Storage (Optional): Both can store transactions with timestamps using a real-time clock (optional).
Communication: Both offer similar communication options (RS232, optional RS485, or Ethernet) for remote access, printing, and program loading.
Configuration: Both allow customization through the front panel or 500 Series Program Manager software.
Data Retention: Both store data in non-volatile memory for at least 30 years.

Differences:

Flow Input: The BR01 uses a volumetric frequency input, while the BR02 uses a volumetric analog input. This suggests the BR01 might be better suited for flow signals based on pulse counts, while the BR02 might handle continuous analog flow rate signals.

In summary, the 515 BR02 seems to be a variant of the BR01 designed for applications using analog flow rate inputs for ratio and blend control in the oil and gas industry. It offers similar functionalities and features with the exception of the flow input type.

Benefits

Tailored for volumetric analog input such as vortex flowmeters
Single or Dual stage control
Preset or manual On-Off modes
Easy access to batch and flow rate presets
No-flow, leakage and overflow error detection
Remote RUN/STOP/RESET
Allows for permissive with prompt
Uses PI Loop Control
"Flushing" available via external logic signal
Allows for non-linear correction
Storage of 1000 transactions with time and date stamp
Selection of second language and user tags
Selectable protocols on serial ports including Modbus RTU and Printer output
Backlit display with LCD backup

More details

CONTREC 515 – BR03 – Frequency Input Batch/Ratio Controller, Tailored for Mass Flow Meters,

The 515 BR03 application is a batching ratio controller designed for delivering predetermined quantities at preset ratios using mass frequency inputs. It offers batch control in preset or on-off modes, and flow control can be configured to various loop control modes. This application provides operators with a clear local readout, including flowrate deviation, and can be controlled via communications in more automated systems. Additionally, quick access to commonly used preset values is available from the front panel if authorized. The PI control of the process flow is achieved through a 4-20mA proportional valve or pump controller, incorporating integral windup protection, deadband, output hold, and programmable ramp time to reduce wear on valves and actuators while enabling bumpless operation.

Data Sheet CONTREC 515 BR03

Manual CONTREC 515 BR03

The 515 BR03 Batch Ratio Controller, is very similar to the 515 BR01 and BR02 models.

Similarities:

Function: Both are batch ratio controllers for delivering preset quantities at specific ratios.
Control Modes: Both offer Ratio and Blend control modes (BLEND-1 and BLEND-2) with identical calculation formulas.
Operator Interface: Both provide clear local readouts and allow control via communication in automated systems.
Flow Control: Both utilize PI loop control with a 4-20mA proportional valve/pump controller and share features like wind-up protection, deadband, output hold, and ramp time.
Data Storage (Optional): Both can store transactions with timestamps using a real-time clock (optional).
Communication: Both offer similar communication options (RS232, optional RS485, or Ethernet) for remote access, printing, and program loading.
Configuration: Both allow customization through the front panel or 500 Series Program Manager software.
Data Retention: Both store data in non-volatile memory for at least 30 years.

Differences:

Flow Input: The key difference is the flow input type. BR03 uses a mass frequency input, suggesting it's designed for flow signals based on mass measurements (likely using a K-factor for conversion). BR01 uses volumetric frequency input, and BR02 uses a volumetric analog input.

In essence, the 515 BR03 caters to applications requiring ratio and blend control based on mass flow measurements. It offers functionalities similar to BR01 and BR02 with the variation in flow input type.

Benefits

Tailored for mass frquency flow inputs
Single or Dual stage control
Preset or manual On-Off modes
Easy access to batch and flow rate presets
No-flow, leakage and overflow error detection
Remote RUN/STOP/RESET
Allows for permissive with prompt
Uses PI Loop Control
Allows for non-linear correction
Storage of 1000 transactions with time and date stamp
Selection of second language and user tags
Selectable protocols on serial ports including Modbus RTU and Printer output
Backlit display with LCD backup

More details

CONTREC 515 – BR04 – Analogue Input Batch/Ratio Controller, Tailored for Mass Flow Meters

The 515 BR04 application is a batching ratio controller designed for delivering predetermined quantities at preset ratios using mass analog inputs. It offers batch control in preset or on-off modes, and flow control can be configured to various loop control modes. This application provides operators with a clear local readout, including flowrate deviation, and can be controlled via communications in more automated systems. Additionally, quick access to commonly used preset values is available from the front panel if authorized. The PI control of the process flow is achieved through a 4-20mA proportional valve or pump controller, incorporating integral windup protection, deadband, output hold, and programmable ramp time to reduce wear on valves and actuators while enabling bumpless operation.

Data Sheet CONTREC 515 BR04

Manual CONTREC 515 BR04

The 515 BR04 Batch Ratio Controller is another member of the 515 BR series designed for ratio and blend control in industrial applications. Here's a breakdown of its key features and how it compares to previous models:

Similarities:

Function: Similar to BR01, BR02, and BR03, it's a batch ratio controller for delivering preset quantities at specific ratios.
Control Modes: Offers Ratio and Blend control modes (BLEND-1 and BLEND-2) with the same calculation formulas.
Operator Interface: Provides clear local readouts, flow rate deviation information, and allows control via communication in automated systems.
Preset Access: Enables quick access to commonly used presets from the front panel (with authorization).
Flow Control: Utilizes PI loop control with a 4-20mA proportional valve/pump controller and features like wind-up protection, deadband, output hold, and ramp time for smooth operation.
Data Storage (Optional): Can store transactions with timestamps using a real-time clock (optional).
Communication: Similar communication options (RS232, optional RS485, or Ethernet) for remote access, printing, and program loading.
Configuration: Allows customization through the front panel or 500 Series Program Manager software.
Data Retention: Stores data in non-volatile memory for at least 30 years.

Differences:

Flow Input: The primary difference lies in the flow input type. BR04 utilizes a mass analog input, indicating it's suitable for continuous analog flow signals based on mass measurements (likely using a K-factor for conversion). BR01 uses volumetric frequency, BR02 uses volumetric analog, and BR03 uses mass frequency input.

In summary, the 515 BR04 caters to applications requiring ratio and blend control based on continuous analog mass flow measurements. It offers functionalities similar to other BR models with the variation in flow input type.

Benefits

Tailored for mass analog flow input
Single or Dual stage control
Preset or manual On-Off modes
Easy access to batch and flow rate presets
No-flow, leakage and overflow error detection
Remote RUN/STOP/RESET
Allows for permissive with prompt
Uses PI Loop Control
“Flushing” available via external logic signal
Allows for non-linear correction
Storage of 1000 transactions with time and date stamp
Selection of second language and user tags
Selectable protocols on serial ports including Modbus RTU and Printer output
Backlit display with LCD backup

More details

CONTREC 515 – CR02 – Analogue Input Batch Ratio Controller

The 515 CR02 application, which is a single loop process controller used for measuring volume flow in main and process lines using analog flow inputs. It offers various operating modes such as local (manual) and loop, ratio, or blend (auto) flow control modes. The tuning menu allows for easy determination of Proportional Band and Integral Time values for the PI control algorithm.

The controller uses main and process flows to calculate the net volume flow, and the operator can view the actual ratio and deviation while also having the ability to change the controlling setpoint directly from the main menu if authorized. Additionally, the PI control of the process flow is achieved via a 4-20mA proportional valve or pump controller. Integral windup protection is included, and operators can program a deadband and output ramp time to reduce wear on valves and actuators, providing bumpless operation.

Data Sheet CONTREC 515 CR02

Manual CONTREC 515 CR02

The 515 CR02 application appears to be a process controller designed for precise flow control in various industrial settings. Here's a breakdown of its key features:

Function:
- Single loop process controller for regulating flow rate.
- Measures volume flow in both a main line and a process line using analog flow inputs.
Control Modes:
Offers various control modes for flexibility:
- Local (manual): Allows direct manual control of flow rate.
- Loop: Maintains a set flow rate through automatic adjustments.
- Ratio: Controls process flow as a ratio of the main flow (0-400% range).
- Blend-1 and Blend-2: Regulates process flow based on the net flow (combined flow before or after the main flowmeter) within a 0-80% range.
Operator Interface:
- Provides clear displays for:
  - Actual ratio between process and main flow (in ratio mode).
  - Deviation from the setpoint flow rate.
- Authorized operators can directly adjust the setpoint flow rate from the main menu.
Control Mechanism:
- Utilizes PI (Proportional-Integral) control algorithm for precise flow regulation.
- Integrates with a 4-20mA proportional valve or pump controller.
- Offers features to enhance control and protect equipment:
  - Integral wind-up protection safeguards valves from damage.
  - Deadband minimizes unnecessary control adjustments.
  - Output ramp time allows for smooth valve opening/closing, reducing wear.

Calculations:

The controller calculates the process flow ratio and net flow (for blend modes) based on the main flow and process flow measurements.

In essence, the 515 CR02 process controller provides a versatile solution for industrial applications requiring accurate flow rate control in single loops. It offers multiple control modes, a user-friendly interface, and features to ensure smooth and reliable operation.

Benefits

Tailored for volumetric analog input such as vortex flowmeters
Uses PI Loop Control
Pump demand contact
Selection of various control modes
“Flushing” available via external logic signal
Allows for cascade trim control when ratio of totals is required
Allows for non-linear correction
Selection of second language and user tags
RTC logging with over 1000 entries
Selectable protocols on serial ports including Modbus RTU and Printer output
Backlit display with LCD backup

More details

Brands

Product Types

Industries We Serve

Batch / Ratio Controllers

CONTREC 515 – BR01 – Frequency Input Batch/Ratio Controller, Tailored for Vol. Flow Meters

CONTREC 515 – BR02 – Analogue Input Batch/Ratio Controller for Vol. Flow Meters

CONTREC 515 – BR03 – Frequency Input Batch/Ratio Controller, Tailored for Mass Flow Meters,

CONTREC 515 – BR04 – Analogue Input Batch/Ratio Controller, Tailored for Mass Flow Meters

CONTREC 515 – CR02 – Analogue Input Batch Ratio Controller

CONTREC 515 – BR01 – Frequency Input Batch/Ratio Controller, Tailored for Vol. Flow Meters

Benefits

CONTREC 515 – BR02 – Analogue Input Batch/Ratio Controller for Vol. Flow Meters

Benefits

CONTREC 515 – BR03 – Frequency Input Batch/Ratio Controller, Tailored for Mass Flow Meters,

Benefits

CONTREC 515 – BR04 – Analogue Input Batch/Ratio Controller, Tailored for Mass Flow Meters

Benefits

CONTREC 515 – CR02 – Analogue Input Batch Ratio Controller

Benefits